add newline in the end

Author: alan-cao

kubernetes/samples/scripts/create-fmw-infrastructure-domain/wlst/create-domain-script.sh

@@ -22,5 +22,5 @@ wlst.sh -skipWLSModuleScanning \
         -managedServerPort ${CUSTOM_MANAGEDSERVER_PORT} \
         -prodMode ${CUSTOM_PRODUCTION_MODE} \
         -managedServerCount ${CUSTOM_MANAGED_SERVER_COUNT} \
-        -clusterName ${CUSTOM_CLUSTER_NAME} 
+        -clusterName ${CUSTOM_CLUSTER_NAME}